dimock



S. F. DIMOCK.

Car Brake.' Y

No. 64,409. Patented May 7, 1867.'

witnesses: Inventor 2./ wc v s M 7 ff @mw/f' AM. PHOTO-LITHU. v(I0, N.!.(OSB'JHNE'S PROCESS.)

@uiten tstrs atmt @ffice S. F. DIMOOK, OF SPENCER, OHIO. Laan Pam No.64,409, and May 7, 1867.

IMPROVED UAR-BRAKE.

tite tigthnle rentrer tu in that @anni what mit mating gmt nf tigesante.

TO ALL WHOM IT MAY CONCERN:

Be it known'that I, S. F. DIMOCK, of Spencer, in the county of Medina,and State of Ohio, have invented certain new and useful improvements inCombined Car-Coupling and-Brakes; and I do hereby declare that thefollowing is a full and complete description of the same, referencebeing had to theaccompanyi'ng drawings, making a part of thisspecification, in which i Figure 1 is a side view of the cars with thebrake attached.

Figure 2 is a View of the under side of the same.

Like letters of reference refer to like parts in the diiferent viewspresented.

A, iig. 1, is the car frame; B, the platform; O O, the wheels and axleupon which the frame is mounted, and D the coupling, all of-which are ormay be constructed in the ordinary manner, and to which is attached thebrake above referred to. This brake consists of the adjustable link E,iig. 1, which is an oblong square frame, provided with a longitudinalslot, F, on each corresponding side. In one end of this link is a holein which slides a rod, G. The inner end of this rod is provided withfour arms arranged at right angles to each other, and on which is placeda friction-roller, H. These rollers are made to roll in the slotsreferred to, so the rods may work backward and forward, as willhereafter be described. The end of the link is also provided with a pairof, friction-rollers, I, fig. 1, the length of which is that of thewidth of the link, and are placed parallel to each other. Between thesethe rod G moves in a groove cut around the middle of each roller, asshown in fig. 1, in

which c is the groove. Y J is a shaft, one end of which is connected tothe adjustable link E by a universal joint, K. M, fig. 2, is a shaft,one end of which is journalled to the adjustable stay N, fig. 1, and theother to the rigid stay O, iig. 2. Near the inner end of this shaft isplaced and keyed the bevel-wheel P, which meshes` into the wheel L. Tothe outer end is keyed the plain wheel Q, so placed in relation to thetruck-wheel C as to run upon its `periphery for a purpose hereaftershown. R is a lever by means of which the adjustable stay N is operated,it being connected to the same by the link S. To the opposite end of theadjustable link, above described, is connected another shaft T, fig. 2,by a universal joint. In the opposite end of this shaft is placed i a.spool, U, between the washers b. This spool is free upon the shaft, butis made more or less tight to the shaft by the washers between which itis placed. The outer washer is pressed against the end of the spool bythe nut V, between which and the washer is interposed a rubber one, W.By this' it will be seen that the spool can be tightcned more or less tothe shaft by screwing up or loosening the nut, as the case may be. Thisarrangement of shafts, spool, &c., is placed in connection withtheordinary brake, as shown in the drawing. c, iig. 1, is the spool,around which the brake-chain d is wound; by the platform hand-wheel andshaft e the brake is operated. ff are the cross-bars, to the end ofwhich the rubbers g are fixed, and forced against the wheels by thelever L and links if. z" is hooked to, the chain, as shown in iig.1,andoperates the brakes by the platform-wheel referred to. The chain isalso connected to the spool U, and around which it winds, first passingpartially around the friction-roller 'm in order to apply the brakes,which is done as follows: By pulling the lever It, iig. 1, in thedirection of the ear, causes the adjustable stay to force the wheel Qupon the wheel C. The action of the two wheels issuch as to turn theshaft M, which also turns the shaft Jby the geared wheels P L. The shaftJ, being connected tothe shaft T by the universal joints and adjustablelink above described, is thereby made to turn at the same time, and inso doing carries with it the spool U, and by this means winds up thechain, thus drawing the brakes upon thelwhecls independent of thehand-wheel and shaft on the platform. On releasing the action of thewheels, the shafts cease to turn, and the spring j forces the brakesfrom the wheels by the unwinding of i the chain from the spool, or theslipping of the spool on the shaft, which, however, may be so screwed upby the nut referred to, as to be almost rigid; but by having it so as toslip by any extraordinary strain, the brakes are prevented from beingbroken, yet, at the same time, will accomplish all the necessary effectsunder ordinary circumstances. By this arrangement it will be seen thatonly one person is required to operate the brakes, all and at one time,and that quite independent of the ordinary brake, but with which it maybc operated conjointly, il' so desired. This arrangemen'tis applicableto'any number of cars, and can be applied with equal power and faciltyas the single brake, and with less labor, as the wheels of the cars aremade to operate it, and at the same time the action of the two wheels oneach other serves as a brake fin connection withthe general applicationof the whole apparatus. By using the adjustable link E and universaljoints, there'can be no displacement :of

the brake by the violent lateral movement ot' the ears, or by the slackin coupling them together; thus the rod G will move into the links onthe cars coming together, or traverse outward, as the case may be, thusadapting itself readily to all the various movements of the rollingtrain, without in the least interfering with the safety of the brakes.

What I claim as my invention, and desire to secure by Letters Patent, isl. The adjustable link E, rollers H and I, in combination with the rodG, shaft T, spool U, arranged and operating substantially as and for thepurpose set forth.

2. The adjustable link E, rollers H and I, in combination with theshafts J lV, and gearing P and L, arranged and operating as and for thepurpose substantially set forth.

3. The shafts J M, gearing P and L, in combination with roller Q,adjustable" stay N, wheel C, arranged as and for the purposesubstantially as specified.

S. R DIMOCK.

Witnesses:

J.VH. BURMDGE,

W. H. BURRXDGE.

